Wireless/mobile communication systems are becoming increasingly popular in recent years. As the wireless resources are scarce, it is important to allocate resources efficiently and carefully, in order to achieve maximum output. The call admission control schemes play a significant role in providing the desired quality of service (QoS) by judiciously assigning the radio channels that are availab...

The paper presents the analysis of integrated voice/data slotted code division multiple access (CDMA) system with soft handoff. Some important characteristics of the cellular configuration in soft handoff systems are used to propose a new design of an efficient call admission control (CAC) in CDMA systems. In particular, voice communications and data transmissions are considered. Voice terminal...

This paper introduces a fast handoff mechanism, NeighborCasting, for use in wireless IP networks that utilize neighboring Foreign Agent [FA] information. NeighborCasting is based on the policy of utilizing, or perhaps even wasting, wired bandwidth between Foreign Agents, while minimizing rf (radio frequency) bandwidth exchanges, in order that handoff latency is minimized. We demonstrate that th...

In wireless networks, mobile node frequently performs handoff. The handoff may occur due to many factors like signal strength, load balancing, number of connections, network status and frequencies engaged etc. This frequent handoff may disturb the services and create few milliseconds of interruption. This delay and number of unwanted handoffs should be minimized for break less performance. Incr...

A new vertical handoff decision algorithm is proposed to minimize the number of handoff in heterogeneous wireless networks, which comprise a number of wireless networks. In this paper we have proposed a multi criteria vertical handoff decision algorithm which will select the best available network with optimized parameter values (such as cost of network should be minimum) in the heterogeneous w...

Wireless networking is becoming an increasingly important and popular way of providing global information access to users on the move. One of the main challenges for seamless mobility is the availability of simple and robust vertical handoff algorithms, which allow a mobile node to roam among heterogeneous wireless networks. In this paper, motivated by the facts that vertical handoff procedure ...

Received Signal Strength based (RSS) horizontal handoff algorithms have been most commonly used by nearly all second generation and third generation wireless networks in a homogeneous environment. Vertical handoffs or network selection algorithms are the terms coined due to integration and interoperability of existing wired and wireless access networks under the umbrella called as 4G. This work...

BACKGROUND Computerized physician handoff tools (CHTs) are designed to allow distributed access and synchronous archiving of patient information via Internet protocols. However, their impact on the quality of physician handoff, patient care, and physician work efficiency have not been extensively analyzed. METHODS We searched MEDLINE, PUBMED, EMBASE, CINAHL, the Cochrane database for systemat...

Handoff performance of NEMO BS protocol with existent improvement proposals is still not sufficient for real time and QoS-sensitive applications and further optimizations are needed. When dealing with single homed NEMO, handoff latency and packet loss become irreducible all optimizations included, so that it is impossible to meet requirements of the above applications. Then, How to combine the ...

In this paper, we have studied the impact of the handoff dwell time (HDT) on the channel holding time (CHT) modeling and examined how it affects the mobile network performance evaluation. Realistic mobility model is constructed that includes the effect of HDT and we derive the important relationship between the critical parameters such as cell residence time (CRT), call holding time, CHT and HD...